Vulnerability Details : CVE-2021-33560
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.
Exploit prediction scoring system (EPSS) score for CVE-2021-33560
Probability of exploitation activity in the next 30 days: 0.13%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 46 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-33560
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
[email protected] |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
[email protected] |
CWE ids for CVE-2021-33560
-
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by: [email protected] (Primary)
References for CVE-2021-33560
-
https://www.oracle.com/security-alerts/cpuapr2022.html
Patch;Third Party Advisory
-
https://dev.gnupg.org/T5328
Vendor Advisory
-
https://www.oracle.com/security-alerts/cpujan2022.html
Patch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/
Mailing List;Third Party Advisory
-
https://dev.gnupg.org/T5466
Release Notes;Vendor Advisory
-
https://dev.gnupg.org/T5305
Release Notes;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/
Mailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202210-13
Third Party Advisory
-
https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61
Patch;Vendor Advisory
-
https://www.oracle.com/security-alerts/cpuoct2021.html
Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/06/msg00021.html
Mailing List;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpujul2022.html
Patch;Third Party Advisory
Products affected by CVE-2021-33560
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- Oracle » Communications Cloud Native Core Network Function Cloud Native Environment » Version: 1.9.0cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.9.0:*:*:*:*:*:*:*
- Oracle » Communications Cloud Native Core Network Function Cloud Native Environment » Version: 1.10.0cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:1.8.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.14.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.11.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.15.0:*:*:*:*:*:*:*
- cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*
- cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*